Car dumping



Jan. 6, 1931. R. E. BROWN 1,737,312

CAR DUMPING Filed March 20. 1928 5 Sheets-Sheet l INVENTOR R. '5: BROWN GAR DUIIPING Filed March 20, 1928 5 Sheets-Sheet 2 INVENTOR Jan. 6, 1931.. R. E. BROWN CAR DUMPING 5 Sheets-Sheet 3 Filed March 20, I928 INVENTOR R. E. BROWN GAR DUIIPING Filedflarch 20. 1928 w 5 Sheets-Sheet 4 R. E. enowu 1,787,8112

CAR DUHPIIG' Filed March 20, 192B 5 $heets-$heet 5 INVENTOR Patented Jan. 6, 1931.

1 UNiiTE'DSTATESi ATEN oFFiCE i sermon!) E. mowmw gemsieo'inen} *ennns nwmm, ASSIGNOR To'HEYL & PATTER- som na, or PHTSBURGH, :rnnnsYnVenm, A zooe'eo'emion on "PENNSYLVANLL- H one DUMPING sloplication'nledgl l'erch 20, 1928. -iSeria1 No. 268,023.

Thisjinvention i'eletes to ear dumpersiend particularly to ve-dwr-nper adepted to entomatica-lly ole npthe :cer in posit-ion tordulnping, and to release the same atter it has been dumped.

These ere several idiiiieulties to \beovercome in constructinge practical oer :dnmper, one

of these arising fnoni the fact that theoer clamps, instead. of engaging the roar sides, may been against .hempednp coal I 1n the car.

The clamps must, thenefore, he -.c hen i11 d'e aendent movement so astoin'sure that the car will he pronerl-y :"olan ned. In a car dumps: of the tilting type, n heavy load is thrownon the clamps when the ear is tilted, and n strongloeking means tor the :olemps must be provided,

' It is not sat-i-st ctoi y to simply lock the cl'a-mps in EPQSitlOI-l, as by e-rigid bolt and ratchet arrangement or the like, because of the feet that when the,loadedoa/risimoved on to the di1-1nper,;1ts springs are under com:

pression and-thebody is relatively lOWdHG to: the Weight of the coal. When the car -1sj empty the spnin-gs are not ender ,sechihigh compression andthe can" bodystands reletive- 1y turther-a-way from the nails. The springs tend to move the embody fnom'its low position to its high position duringdumping, and ifthe-olan-ips ane not'yieldable. the eerspri-ngs throw a heavy load one-them. Itwill he seen that when the dn-mper has beenreturned to such position that the car is again level, the clamps, if non-yielding, will be sub ected to,

an upward thrust by the-oer springseqnelfiin amount to the Weight of the coal originally contained in the car, 7

ing outwardly after they have been set, end

therefone they Will seecommodete themselves I to the movement of the car body away vfrom The scar dumper is preferably; made With'a frame having a platen thereon,

the trucks.

' thisgplaten having tracks which support the car.

When the cardumper is tilted the plat} enmoves sidewiseaindcontrols cable eonneotions which permit the clamps to Inove'into,

'.engagement with the ear, This sidewise lnovement oi the pl'eten .is limited-by their side of the Car coining into engagement Fwith V bumpers or stops on the frame. These bumpers are preferably made 'movztble relattive to the frame so that when the frame is snfiioiently tilted they will slide outwardly and away from the platen with the eambody.

As above stetedfihe clamps arre provided a limited degree of movement, and when thecar body slides outwardly the elamps. :move.

with it until they teach the endof their travel; ;Wh=i-le the car body tends to move away from the platen, and to leave the trucks in fixedUpesi-tion relative thereto, I :preterably so for-in platen that :it tendszto follow the sucks in ease they move outwardly with the can body; This prevents deraliling' of the oer -;d uring dumping. V 1 preferably employ springs low-other balance means 1 01- the plitten, so arrangedthet when the damper is inits normal position the downward foroe, dneft'o the weight of the pl'atemis slightly in excess the balance means beoomesgraduail ly less so that the balancing force is sufficient to "cause the platen to move outwardly and follow the ceit,= neoesswry In :e'dditionto this, the

balance means is preifiemhly so arranged that its ioroeinoreases on sidewise movem'rent of the platen;

In the accompanying d:rewin;gs illustr atmg the present preferred embodiment ofmy invention,

' Figure 1 isia top plan view of e tilting ear 7 dumper, partly broken away, s

overcome this difficulty by providing a locking device having :1, limited degree of movement. The olampsa're capable otanov- Figure 4; is a transverse section taken on the line IVIV of Figure :1,

"Figure :5 is a detail view showing thei looking devioefor the clamps,

' Figui'efi is a side elevation, p ei tlyf biioken away, {of line of the stops or hunipersfgn the,

car, and j v I Figure 7. is a diagrammatic View illustratin; the; clamp lowering arrangement;

The ear dumper shown in the drawings se -Pests he me s s-Pl s s longitudinally extending shaft 19.

shaft is driven by a motor through worm nected by longitudinal girders 3,-these longitudinal girders carrying normally horizontal beams '4, and normally vertical members .5. The vertical members 5 support a spill plate6, and the horizontal beams 4 are provided with rails 7 on which a platen 8 is mounted. The platen8 has wheels 9 running on the tracks 7 so that the platen may move platen 8. The end rings have rails 13 engaged-b y flanged wheels'14 on a sub-frame '15 by which thetilting portions of the dumper are carried. The end rings are alsoprovided with ring gears 16, which.ringgears are engaged by gears 17 journaled in the sub-frame 15. The gears-l7 mesh with pinions 18 on a The gearing, indicated at 21, whereby the frame and platen, with a car thereon, may berotated in eitherdir'ection, as desired.

The frame is rotatedclockwise, as viewed .in'Figures 2 and 3, inorder to dump the contentsof a car. During thiscloekwise movement-the tracks .7 of the platen are inclined so that the platen tendsto travel toward the spill plate. 'The sidewise movement of the formed on the main frame, and-the lever [by whlch-the-car's are supphed to and-taken:

V 7 thetracks'? are tilted-and the platen, due to its own weight and the weight of the car car-.1

platen on the rails 7 is controlled by horns 22 which are secured to the foundation and extendinwardly far enough to engage lever arms 22a carried by the platen adjacent each of its ends iand'pivotally connected thereto at 226. When the car dumperis in its normal position, as shown in Figures'3 and 4, the

.platenisengaged' at one side by stops 23 armsare engaged by the'horns22- In this positionthe arms lie against the'iplaten, so that its position is definitely determined and itis in proper alignment with the tracks T away-from the dumper. I

,When the, car dumper'is rotated clockwise,

V ried thereby, tends to run down-hill. This movement is resisted by the horns'22, but since theflametohtinnes to rotate clockwise,

- as viewedin Figures 3 and .4, relative movej scribed.

' ward the. spillplate is effective forlowe'ring ment betweenthe platen 8 and the beams'4 takes place untilthe sideof the car comesfinto engagement with stops or bumpers 24. The bumpers 24 lie against the spill plate 6 and are-slidable between angles 25 secured Qto lthe spill fplate,

. hereinafter, more fully; de-

-The sidewise movement of the platenitocarclamps 26 into'engagement'with the car. Each car-clamp consists ofa slide 27. having cured to the mainframe. Each sheave 33 extends through an opening formed in the spill plate andserves'to carrythe cable to the rear ofthe spill plate. The cable passes overthe sheave 33 and downwardly around a sheave 34. From the sheave 34 the cable extends to a sheave 35 adjacent the end of the dumper, and then passes downwardly and over a sheave 36. The cable i'sthen reeved around sheaves 37 on the arms22a, and sheaves 38 on the frame, the end of the cable being secured to a tensionspring 39, the upper endof the tension spring being fastened to the frame. When thev platen 8 moves toward'the spill plate, the sheaves '37 are correspondingly moved toward the sheaves 38, thus permitting the clamps to'drop by" their own 3 weight. The 'reeving. of the cable between the sheaves 37 and 38 is effective for multiplying the movement so that the total possible drop-0f theclamps is a multiple of thejtotal sidewisemovement of the platen.

Continued tilting. ofthe frame after the car body comes intoengagement with the bumpers 24 permits the arms 22a to swing about their pivots 22?; toward the spill plate 6, thus providing ample movement for the clamps. The-tension springs take up all slackness in the'cables and'prevent them from running off the-sheaves. 7

The slide 27 of'each' clamp has ratchet teeth 40' formed on its rear face, and openings 41 are provided inthe spill plate 6. A

-dog 42 extendsthrough each opening so as to engage the teeth. Each dog is provided wit-han elongated'o'pening 43 through which a pin 44, fastened to the frame, passes. Each doghas an arm 45, and a-link 46 connects the arm" 45 witnla pendulum 47.: The pendulum 471s pivotedto-theframe '48 and when the car dumpe-r is level,;the weight of the pendulum issufiicient tohold the dog 42 out of engagement with the ratchet teeth40.

Figure 5 shows the position of the several parts of the ratchet and dog mechanism when the car dumper is level, and it will be noted that the pendulum lies-ata material angle to the vertical. .The spill plate acts as 'a stop, bearing against'the link 46 so as to prevent the pendulum 47 fromlswinging to the vertical position. .The movementiof the dog and pendulum is not necessarily limited in this manner, but it isdesi-rable in that movement of the parts isreduced to' a minimum.

As thefcar dumper istilted, the pendulum and thedog maintainqthe" position shown in Figure 5 until 'the'car dump'er assumes such,

angularity that the pendulum ishanging ver ,ticallyvfrom its pivot 48. ,This gives, the

platen ample opportunity toamove and permit the clamps to lower.

tilting of the car dam er-muses the,

lum to swing away from thespill plate'and springs to expand and to urge the car bodyaway from the platen. If the dogs 42 were arranged so as to lockthe clamps non-yieldingly, the force thrown on the dogs would be so great as to practically preclude their unlocking after the car had been emptied and returned to its normal position. However, the provision of the slots 43 makes it possi-.

ble for the dogs to slide relative to the pins 44, thus permitting the clamps to move outwardly to a limited degree and compensate for the movement of-the car body away from the platen. During this movement the stops, or bumpers, 24 slide along the spill plate 6.

These stops are provided with cross pins 49 working in-slots 50 in the angles 25.

The amount of movement permitted by the slots 43 is sufficient to compensate for the difference in the position of the car bodyrelative to the rails when in loaded'and in unloaded condition, but for several reasons it is desirable to insure that the platen will be capable of following up the movement of the car and thus insure against derailing. For instance, the amount of total movement of the body of a particular car relative to its trucks might be considerably less than that figured on in designing thecar dumper, and therefore the trucks would tend to move away from the platen when the dumper. was in extreme dumping position. The platen is therefore provided with balance means which are effective for lifting it away from its tracks 7 and keeping it in constant engagement with r the wheels of the car being dumped.

The balancingarrangement is shown in detail in Figure 4. It comprises aspair of parallel arms 51 at each end of the platen, these arms being pivoted to the platen at 52. The arms extend through trunnion blocks 53 and are provided-with heads 54 which limit the outward movement of the platenv and prevent its falling out of place in the event that no car is on the dumper when it is tilted.

- Compression springs 55 are placed around the arms 51.

These springs hear at their lower ends onathe trunnion blocks 53 and at their upper ends against shoulders formed on the arms. They are placed under an initial cgmpression so that when the platen is on its tracks 7 and in the position shown in Fig ure 4, the upward force exerted by the springs is slightly lessthan the weight of the platen.

- As shown in Figure 4, the arms are indined-away from the spill plate so that as \naoves toward the spill 'pilate the arms $51 assume a more nearly perpendicular 1 nrelative to the platen, thereby fur -com;press'ing the springs and their power. o

' the ldumper is tilted positioniihe weight component of the platen exerted along the/axis of fih-esprjin'gs isvery small, and thereione thesprings have sufiicient power to urge the platen nutwardly and keep its rails in engagement with the wheels of a car on the Miter the 21.1 has been dumped, the frame is a eounter clockwise direction, as viewed inY-igures-B and 4. During such movement each pendulum 47 swings bac'kxto its-normal pe'si tienand withdraws its dog 42 from engagement with the clamp'ratehets 4Q; emana e eounter-c'loekwise movement bitngsflie arms 22? into engagement withthe horns $2 and theelamps 29 are thus raised away {mm the car body. .When thearms have swaang-a sufi'ic i-ent distance to lie against the s'ideof the pia'ten, the platen itself, with the ear thereon, is moxzedsidewise relative to iamneflandawayrfirom the spill plate 5,

'so'i thait when the return movement is compieted the platen, with the empty scar thereon, is -in alligmne'nt with tracks T, readyfor the car to be moved away.

I-ha ve illustrated and described the'presentpnefierred mmsr my invention, but it will be'amderstood that it is not 'limited'to this elqme butmay :Ibe .nth'erwise :embodied oi the following 1;. A eardum'per eomprising a aframm a platen mounted thereoma clamp to engage a m .on the platen, the platen being temerdth clamp, and me ns u ging he platen t ward-the a e-me 2. A car dumper comprising a frame, a platek e ted hereoma c p adapt d t engagf platen, .the platen being nwvajlet toward the clamp; and pring baln e means ior he platen, said b lance meaasnrging the plat n toward the c ampc ar dhmper comprising a tilting frame, a platen mounted thereon, a clamp, means for iimitingsidewise movement of a car on the platen, and means effective on tilt ingn ovement of the frame and after the side'- wise movement-of the platen has terminated fermovingthe platen toward the clamp.

A damper eomprising a "tilting frame, aplatenearried by the frame and move able --reletive theretov upon tilting or the frame,-and baleneemeans for the platen, the balance means being so arranged as to urge platen tmvardfthe carhody and being adapted toinereas'e in efiectiveness when the trame-istiited 2 platen have mitted bythe clamp. o I I 6. A caridumper comprising a frame, a

ing car rails thereo'n a clamp-and alockin-gl device for the clamp, the locking devlce hav-" ing a limited degree-ofmovement, and'the platen being movable toward the clamp 1n such manner as to maintain engagement of; the rails with the Wheels .of a car on the platen as said gear moves in the amount per platen mounted thereon and having carrails,

aclamp adapted to engagea car on the,

v ql s i is tilted, and v means urging the platen toward the clamp; v I p 'In testimony whereof I have hereunto set In hand. 7 1 V V v 3 RAYMOND E. BROWN.

platen, the platen being movable towardthe clamp and the clamp being also movable tora limited degree after olamping'in-the direction of movement of the platen, and means I urging the platen toward the'clamp so as to, i

maintain engagement of the rails With the wheels of a car on a platen as said car moves ited degree of movement'and the sidezsup ports being'so arranged and constructed that frame; a platen mounted-thereon, side; sup

a car in' engagementithereon may move rela-- ti'vely'easily Withrespect to-ithe frame,jthe g platen being movable in thesame direction, as therclamp and after sidewisemovement thereof has terminated. v r 8. A car dumper comprising a tilting ports for limiting sidewise movementiofa car on the platen,.a clamp for engaging a car;

on the platen; the clamphaving alimited degree of movement and the side supports be.

ing so arrangedand constructed thatacar in engagement thereon may move relatively easily 'With respect to the frame, the platenbe ing movable in the 'samerdirection as the:

clamp and after sidewise 'movement thiere'of platen toward said "clamp;

'9. A car dumpercomprising has terminated, and means for-urgingzthe' mean we ing the platen arvay from the tracks? v 4 a tilting frame, apl'aten movable'sidewise in the frame; the platen runningon tracks,

10. A, cardu'mp'er{comprising "a tilting frame, a platen movahle'rsidetvise infthe frame, the platen running on tracks; and, spring means urging the platen E'aWay front the tracks.

Y 11. A car dumper frame,aplaten movable sideWiseinthQ-frame',

the platen running on tracksr and; spring means urging the platen; away. fromU-the tracks", said springs being of such power as to exert a force whichiis less than the Weight .of the platen. T 92 1 2; j

j 12. A car; dumper comprising a -tilting' frame, a platen thereon; means for limiting sidewise movement of a car on thelplaten, a?

clamp for supporting the. car nzhentherframe 

